How is it not true at the residential end? It is usually impractical to drive to the train station, park, and then take the train in. If you’re already driving, you can just drive to wherever you want to go.
Nonetheless, that's what everybody does in places like the New York suburbs. As the cost of gas rises, the savings from doing this steadily gets btter than the inconvenience. At the same time, transit encourages higher density development in the city, squeezing out cars. This has now even started to happen in Los Angeles.